Pith Number

pith:XDDZQMVN

pith:2026:XDDZQMVNCNPMDC3UFGXK52LDJM

not attested not anchored not stored refs pending

Chess Signatures of Play

Christian Turk, Nicholas Polson

arxiv:2606.18544 v2 · 2026-06-16 · stat.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDDZQMVNCNPMDC3UFGXK52LDJM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-19T16:12:58.267736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8c79832ad135ec18b7429aeaee9634b3eb1b5dc2b067502bcef0c3ee3d2809f

Aliases

arxiv: 2606.18544 · arxiv_version: 2606.18544v2 · doi: 10.48550/arxiv.2606.18544 · pith_short_12: XDDZQMVNCNPM · pith_short_16: XDDZQMVNCNPMDC3U · pith_short_8: XDDZQMVN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XDDZQMVNCNPMDC3UFGXK52LDJM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b8c79832ad135ec18b7429aeaee9634b3eb1b5dc2b067502bcef0c3ee3d2809f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "968e994f13df2729ef7c5b7c92e5ee76b33dd68958ca9df8f66320925cbc7dfa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2026-06-16T23:51:45Z",
    "title_canon_sha256": "5deb43304b0ee51bb4bc392d6542e17159147bba5d97c3d05f3e90f381e88148"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.18544",
    "kind": "arxiv",
    "version": 2
  }
}